Background Dengue is the most significant mosquito-borne viral disease; there are no specific therapeutics. The antiparasitic drug ivermectin efficiently inhibits the replication of all 4 dengue virus serotypes in vitro. Methods We conducted 2 consecutive randomized, double-blind, placebo-controlled trials in adult dengue patients to evaluate safety and virological and clinical efficacies of ivermectin. After a phase 2 trial with 2 or 3 days of 1 daily dose of 400 µg/kg ivermectin, we continued with a phase 3, placebo-controlled trial with 3 days of 400 µg/kg ivermectin. Results The phase 2 trial showed a trend in reduction of plasma nonstructural protein 1 (NS1) clearance time in the 3-day ivermectin group compared with placebo. Combining phase 2 and 3 trials, 203 patients were included in the intention to treat analysis (100 and 103 patients receiving ivermectin and placebo, respectively). Dengue hemorrhagic fever occurred in 24 (24.0%) of ivermectin-treated patients and 32 (31.1%) patients receiving placebo (P = .260). The median (95% confidence interval [CI]) clearance time of NS1 antigenemia was shorter in the ivermectin group (71.5 [95% CI 59.9–84.0] hours vs 95.8 [95% CI 83.9–120.0] hours, P = .014). At discharge, 72.0% and 47.6% of patients in the ivermectin and placebo groups, respectively had undetectable plasma NS1 (P = .001). There were no differences in the viremia clearance time and incidence of adverse events between the 2 groups. Conclusions A 3-day 1 daily dose of 400 µg/kg oral ivermectin was safe and accelerated NS1 antigenemia clearance in dengue patients. However, clinical efficacy of ivermectin was not observed at this dosage regimen.
The fungi in genus Neocosmospora (formerly Fusarium solani species complex) are hyaline molds that are commonly found in soil and organic debris. The genus Fusarium was first described in the early 19th century. In 1935, Wollenweber and Reinking used morphological differences to organize the genus into 16 sections, with 65 species, 55 varieties, and 22 forms. 1 Disease in humans is limited to a few species. F solani complex (currently Neocosmospora spp.) 2 are the most common isolate, followed by F oxysporum, F verticillioides, and F proliferatum. 3 Fusarium spp. possess several virulence factors, including trichothecene and other mycotoxins. These mycotoxins suppress humoral and cellular immunity of infected hosts, and they cause tissue breakdown. 4 In immunocompetent hosts, infections usually occur after traumatic inoculation, and they commonly manifest as keratitis, onychomycosis, or soft tissue and skin infection. Fungemia and disseminated infection are common in immunocompromised patients. The strongest risk factor for disseminated fusariosis is severe immunosuppression, like that presented in patients with hematologic malignancies or prolonged neutropenia. 5 There are only a few reported cases of fusariosis in solid organ transplantation. In this report, we present the first case of isolated Neocosmospora pseudensiformis pulmonary infection in a patient with non-alcoholic steatohepatitis cirrhosis who underwent orthotopic liver transplantation.
Dengue (DENV) infections are a public health concern worldwide and thus early diagnosis is important to ensure appropriate clinical management. The rapid diagnostic test (RDT) targets nonstructural protein 1 (NS1) detection and is the main tool used for diagnostic purpose. In this study, we evaluated the performance of a new rapid and semi-quantitative microfluidic DENV NS1 immuno-magnetic agglutination assay or IMA (ViroTrack Dengue Acute, BluSense Diagnostics, Copenhagen, Denmark). We studied 233 subjects confirmed to have DENV infection (by a real-time reverse transcriptase polymerase chain reaction) and 200 control samples were taken from patients with confirmed diagnoses of other febrile illnesses, in Thailand. Samples were tested using the NS1 antigen (Ag) detection methods: in-house NS1 Ag ELISA (ELISA), SD BIOLINE Dengue NS1 Ag RDT (ICT), and ViroTrack Dengue Acute (IMA). Sensitivities of these tests were 86.3%, 78.9%, and 85.5%, respectively. All tests showed high specificity (100%, 99%, and 97% for ELISA, ICT, and IMA, respectively). The sensitivities of both RDTs were affected by the low sensitivity to DENV-2 and DENV-4. NS1 Ag was detected in every patient on day 1 and day 2 after onset of illness by ELISA and IMA with a decline in detection rates over time after day 6 of illness. NS1 detection rate using ICT decreased from 100% on day 1 of illness to 98.6% on day 2 after onset of illness. By day 6, the detection rate was 45.9%. Thus, IMA performed better than ICT for early and rapid diagnosis of DENV infections in endemic countries.
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